SuiteCRM 7.11.11 Second-Order PHP Object Injection

2020.02.13
Credit: EgiX
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-74


CVSS Base Score: 6.5/10
Impact Subscore: 6.4/10
Exploitability Subscore: 8/10
Exploit range: Remote
Attack complexity: Low
Authentication: Single time
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

--------------------------------------------------------------------- SuiteCRM <= 7.11.11 Second-Order PHP Object Injection Vulnerabilities --------------------------------------------------------------------- [-] Software Link: https://suitecrm.com/ [-] Affected Versions: Version 7.11.11 and prior versions. [-] Vulnerabilities Description: 1) The vulnerability exists because the "EmailsControllerActionGetFromFields::getEmailSignatures()” method is using the unserialize() function with the "account_signatures” user preference, and such a value can be arbitrarily manipulated by evil users through the EmailUIAjax interface. This can be exploited to inject arbitrary PHP objects into the application scope, allowing an attacker to perform a variety of attacks, such as executing arbitrary PHP code. 2) The vulnerability exists because the "EmailsControllerActionGetFromFields::handleActionGetFromFields()” method is using the unserialize() function with the "showFolders” user preference, and such a value can be arbitrarily manipulated by evil users through the EmailUIAjax interface. This can be exploited to inject arbitrary PHP objects into the application scope, allowing an attacker to perform a variety of attacks, such as executing arbitrary PHP code. [-] Solution: No official solution is currently available. [-] Disclosure Timeline: [19/09/2019] - Vendor notified [20/09/2019] - Vendor acknowledgement [12/11/2019] - Vendor contacted again asking for updates, no response [20/01/2020] - Vendor notified about public disclosure intention, no response [07/02/2020] - CVE number assigned [12/02/2020] - Public disclosure [-] CVE Reference: The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2020-8800 to these vulnerabilities. [-] Credits: Vulnerabilities discovered by Egidio Romano. [-] Original Advisory: http://karmainsecurity.com/KIS-2020-01


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